drm/i915: Only refcount ppgtt if it actually is one
This essentially unbreaks non-ppgtt operation where we'd scribble over
random memory.
While at it give the vm_to_ppgtt function a proper prefix and make it
a bit more paranoid.
Reviewed-by: Michel Thierry <michel.thierry@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 101fc63..454badf 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -2512,6 +2512,15 @@
return vm == ggtt;
}
+static inline struct i915_hw_ppgtt *
+i915_vm_to_ppgtt(struct i915_address_space *vm)
+{
+ WARN_ON(i915_is_ggtt(vm));
+
+ return container_of(vm, struct i915_hw_ppgtt, base);
+}
+
+
static inline bool i915_gem_obj_ggtt_bound(struct drm_i915_gem_object *obj)
{
return i915_gem_obj_bound(obj, obj_to_ggtt(obj));
@@ -2547,7 +2556,6 @@
/* i915_gem_context.c */
#define ctx_to_ppgtt(ctx) container_of((ctx)->vm, struct i915_hw_ppgtt, base)
-#define vm_to_ppgtt(vm) container_of(vm, struct i915_hw_ppgtt, base)
int __must_check i915_gem_context_init(struct drm_device *dev);
void i915_gem_context_fini(struct drm_device *dev);
void i915_gem_context_reset(struct drm_device *dev);